Elastic press-stud.



F. K AIPER & A. WIESINGER. ELASTIC PRESS STUD.

APPLICATION FILED AUG'.22,'1913.

1 1 34,049, Patented Mar. 30, 1915" Mfzwssw:

THE NORRIS PETER CO., FHOTO-LITHO.. WASHING IUN. D. c.

UTED STATES PATENT OFFICE.

FRANZ KAFER, OF VEL'IHEIM, NEAR WINTERTHUR, AND ARTHUR WIE$INGER, OF ZOLLIKON, NEAR ZURICH, SWITZERLAND.

ELASTIC PRESS-STUD.

Application filed August 22, 1913.

To all whom it may concern Be it known that we, FRANZ KZiFER and ARTHUR W IESINGER, citizens of the Swiss Republic, and residents of Zur Platte, Veltheim, near Winterthur, Switzerland, and 87 9 Gstaad, Zollikon, near Zurich, Switzerland, respectively, have invented certain new and useful Improvements in Elastic Press-Studs, of which the following is a specification, such as will enable others skilled in the art to which it appertains to make and use the same.

Articles of clothing in which ordinary press studs are used for buttoning more particularly ladys clothes, such as blouses and the like, are subjected, for example, when bending, to greater or less strains owing to the movements of the body, so that it often happens that the press stud opens of itself or is pulled away from the material and thus occasions a partial opening of the article of dress at the closing spots.

This invention has reference to an elastic press stud in which articles of dress partly opened by strain are automatically closed again when the strains cease, so that any opening of the press stud or separating or tearing away of the same from the material is avoided.

We will now describe our invention with reference to the accompanying drawings showing two forms of construction by way of example, in which Figure l is a longitudinal section of the one form of construction. Fig. 2 is a plan. Fig. 3 is a cross section. Fig. 4 is a longitudinal section of the second form of construction.

The hollow portion a of the press stud according to Figs. 1 to 3 has a longitudinal slot Z) on top, in which the projecting knoblike portion 0 can slide. A spring at is arranged at the interior of the hollow portion and is compressed on the displacement of the knob portion, so that after the cessation of the pressure occasioning the displacement of the part 0 is returned into its original position. The front end of the slot 6 is somewhat enlarged so as to be able to pass the head 6 of the knob portion through. After passing the head through the slot the spring d immediately presses against the same and thus prevents any unintentional slipping of the same out of the part a. For the purpose of suitably guiding the head it Specification of Letters Patent.

Patented Mar. 36), 1.??15.

Serial No. 786,158.

projects partly into a longitudinal recess 7 of the slotted portion. Both parts a and 0 are arranged so that they can be sewn on to the material.

According to the form of construction shown in Fig. 4 the elastic press stud has two hollow portions a and m which have flanges or borders on opposite sides serving for sewing to the edges of the material or article of dress. The knob part 6 projects into both these slotted portions and is longitudinally displaceable in the portion 00 in a slot 5, but is not removable from the same. For the latter purpose a plate-like enlargement is provided which engages over the guide slot 6. The portion e is also movably situated in a slot 1) of the portion a, but is removable through an enlarged opening h 010- posite the guide slot for the head of the knob portion. The knob portion is exposed to the action of the coil spring cl d, in both slotted portions, which springs endeavor to hold the knob in the normal closing position shown in the drawing, and on any strains of the clothing permits of displacement of both slotted portions in the direction indicated by the arrows. The coil spring (Z of the part a is further for the purpose of securing the knob part in the normal locking position from any accidental slipping out through the opening IL.

What we claim and desire to secure by Letters Patent is l. A fastener comprising male and female members, the male member having a beaded stud, the female member comprising a casing having a slot therein formed with an enlargement, a coil spring within the casing and beneath the slot, the stud normally passing through the enlarged portion of the slot and engaging between the coils of the spring and frictionally held thereby, the said stud adapted to slide in the slot against the pressure of the spring.

2. A fastener comprising male and female members, the male member consisting of a casing formed with a slot, a spring in said casing, a stud formed with a head at one end and a base at the opposite end, the base fitting in the casing against the spring, the female member consisting of a casing formed with a slot having an enlargement, a coil spring in the casing of the female member, the head of the stud adapted to pass through the enlarged portion of the housing between the slot and the depression, i

and a beaded stud Which is adapted to project through the enlargement of the slot and between the coils of the spring and into the depression, the neck of the beaded stud operating in the slot when the spring is compressed by the movement of said stud on said housing.

In Witness whereof We have hereunto set 15 our hands in presence of tWo Witnesses.

r FRANZ KAFER- e ARTHUR WIESINGER.

' WVitnesses:

CARL CUBLER, ROGER AMES BURR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 7 *Washington, D. '0. i 

